Vehicle-spring



(No Model.)

A. C LARK.

VBEIGLB SPRING. No. 393,297. Patented Nov. 20, 1888.

n.. l Imm' l n num` 1 if I v@ Il UNITED. STATES PATENT OFFICE.

ALBERT CLARK, OF LANSING, MICHIGAN.

VEHICLE-SPRING.

SPECIFICATION forming:y part of`Letters Patent No. 393.297, datedNovember 20, 188.

Application filed June 5, 1888.

To all whom. it may concern:

Be it known that I, ALBERT CLARK, a citi- Zen of the United States,residing at Lansing, in the county of Ingham and State of Michigan, haveinvented certain new and useful Improvements in Vehicle-Springs, ofwhich the following is a speciicatiomreference being had therein to theaccompanying drawings.

r[lhis invention relates to new and useful improvements invehicle-springs, and the invention consists in the peculiar constructionof a spring and its combination with the runninggear and body ofavehicle, all as more fully hereinafter described.

In the drawings which accompany this specification, Figure l is aperspective View illustrati n g n'iyin'iproved Vehicle-spring as appliedto the so-called buckboard 7 vehicle, and Fig. 2 is averticai centrallongitudinal section thereof.

A are the springs, B is the wagon-body or buckboard, C is the frontaxle, and D is the rear axle, of a vehicle. The springs support thefourcorners of the buckboard in the longitudinal direction of the body,one pair supporting the front end upon the front bolster in advance ofthe buckboard and the rear pair supporting it upon the rear bolster inthe rear of the buckboard to permitafree vertical play of the buckboardbetween the front and rear axles.

Each spring consists of one or more leaves bent in the form of a volutewith the inner end of the volute formed into an eye, and with the outerend of the volute forming a lateral straight extension. These springsare secured at each end of the body by means of suitable bolts, ct, asshown, and with the volute circling around the bolster to bring the eyeof the volute on top, where it is secured by means of suitableclips,preferabl y consisting of the plate b, formed integral with theears c upon its upper side, and secured to the bolster by means of theclip-bolt d. 1

By making the lateral arm of the springs shorter or longer any desiredelasticity of the ,springs may be obtained. At the same time thisconstruction has several advantages above others now known for ordinaryvehicles, as it Serial No. 276,006. (No model.)

will be seen that there is a greater play of the body under heavier orlighter loads, while at thesame time the working out of the pivotal pinsecuring the spring to the bolster will not produce any accidents of aserious nature, as the spring remainssupportedupon the bolster. It isalso very hard to break aspring of this construction, as under a greatdepression or load the longitudinal play of the body is stopped by thebolster, and therefore cannot bring any longitudinal strain on thespring. I deem the relative position of the body and bolsters important,for by this arrangement the body can freely play between the bolstersunder heavy loads, and thus very easy riding is the result.

\Vhat I claim as myinvention isl. The combination, with the front andrear axles and the bolsters thereon, of the body or buckboard of lesslength than the distance between said bolsters, the volute springssecured at one end directly to said body or buckboard near the endsthereof,and the other ends passed under the bolsters and turned upwardin front of the front board and in rear of the rear board of said body,and with the eyes thereof supported on top of said bolsters,substantially as and for the purpose specified.

2. The combination, with the front and rear bolsters, the body orbuckboard B, of less length than the distance between said bolsters, andarranged between said bolsters of the volute springs A, secureddirect-ly to the front and rear corners of the body in the longitudinaldirection thereof and passed under said bolsters, of clips consisting ofthe eared plates b, secured to the eye of the spring on top of thebolster, and the clip-bolts d, the parts being arranged and constructedsubstantially as and for the purpose described, whereby the body has afree vertical play between the bolsters, as set forth.

In testimony whereof I affix my signature,in presence of twowitnesses,this 4th day of January, 1888.

ALBERT CLARK.

Witnesses:

JOHN SCHUMAN, P. M. HULBERT.

